MESON Chess Problem Database
Problem Display
PID: 6603 (1K4B1/p5Q1/8/1n2R1Pb/N2k1bRq/pr3r2/2PN1P2/8 w - - 0 1)
Goethart, Gerhardus Hendrik
Discendo Discimus (solving ty.), 1932
#2
10 + 9
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Sxf3#
- 1...Rb2
- 2.Sxf3#
- 1...Rb4
- 2.Sxf3#
- 1...Rxf2
- 2.Sxb3#
- 1...Sc3+
- 2.Sxb3#
- 1...Sd6+
- 2.Rb5#
- 1...Sc7+
- 2.Rb5#
- 1...Rb1
- Tries
- 1.Kb7?
- threat
- 2.Re1#
- 2.Re2#
- 2.Re3#
- 2.Re4#
- 2.Rxb5#
- 2.Rc5#
- 2.Rd5#
- 2.Rf5#
- 2.Re7#
- 2.Re8#
- 1...Sc3+
- 2.Sxb3#
- 2.Rb5#
- 1...Sc7+
- 2.Rb5#
- 1...Qxf2
- 2.Re1#
- 2.Re2#
- 2.Re4#
- 2.Re7#
- 2.Re8#
- 1...Qxg5
- 2.Re4#
- 2.Rd5#
- 2.Rexg5#
- 1...Qxg4
- 2.Re4#
- 2.Rd5#
- 1...Rxf2
- 2.Sxb3#
- 2.Re1#
- 2.Re2#
- 2.Re4#
- 2.Re7#
- 2.Re8#
- 1...Bxg4
- 2.Re4#
- 2.Rd5#
- 1...Rbe3
- 2.Rxe3#
- 2.Re4#
- 2.Rd5#
- 1...Rfe3
- 2.Rxe3#
- 2.Re4#
- 2.Rd5#
- 1...Bf7
- 2.Rxb5#
- 2.Rc5#
- 2.Rf5#
- 1...Be8
- 2.Re1#
- 2.Re2#
- 2.Re3#
- 2.Re4#
- 2.Rxb5#
- 2.Rc5#
- 2.Rd5#
- 2.Rf5#
- 2.Re7#
- 2.Rxe8#
- 1...Sd6+!
- threat
- 1.Ka8?
- threat
- 2.Re1#
- 2.Re2#
- 2.Re3#
- 2.Re4#
- 2.Rxb5#
- 2.Rc5#
- 2.Rd5#
- 2.Rf5#
- 2.Re7#
- 2.Re8#
- 1...Qxf2
- 2.Re1#
- 2.Re2#
- 2.Re4#
- 2.Re7#
- 2.Re8#
- 1...Qxg5
- 2.Re4#
- 2.Rd5#
- 2.Rexg5#
- 1...Qxg4
- 2.Re4#
- 2.Rd5#
- 1...Rxf2
- 2.Sxb3#
- 2.Re1#
- 2.Re2#
- 2.Re4#
- 2.Re7#
- 2.Re8#
- 1...Bxg4
- 2.Re4#
- 2.Rd5#
- 1...Rbe3
- 2.Rxe3#
- 2.Re4#
- 2.Rd5#
- 1...Rfe3
- 2.Rxe3#
- 2.Re4#
- 2.Rd5#
- 1...Bf7
- 2.Rxb5#
- 2.Rc5#
- 2.Rf5#
- 1...Be8
- 2.Re1#
- 2.Re2#
- 2.Re3#
- 2.Re4#
- 2.Rxb5#
- 2.Rc5#
- 2.Rd5#
- 2.Rf5#
- 2.Re7#
- 2.Rxe8#
- 1...Sc3
- 2.Sxb3#
- 2.Sxf3#
- 2.Re1#
- 2.Re2#
- 2.Re3#
- 2.Re4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rd5#
- 2.Rf5#
- 2.Re7#
- 2.Re8#
- 1...Sd6
- 2.Re1#
- 2.Re2#
- 2.Re3#
- 2.Re4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rd5#
- 2.Rf5#
- 2.Re7#
- 2.Re8#
- 1...Sc7+!
- threat
- 1.Rxf4+?
- 1...Rxf4
- 2.Sxb3#
- 2.Re4#
- 2.Rd5#
- 2.Rf5#
- 1...Qxf4!
- 1...Rxf4
- 1.Qxa7+?
- 1...Kxe5
- 2.Qc5#
- 1...Sxa7+!
- 1...Kxe5
- 1.Qd7+?
- 1...Kxe5
- 2.Qd5#
- 1...Sd6+!
- 1...Kxe5
- 1.Kb7?
- Keys
- 1.Qb7!
- threat
- 2.Qe4#
- 2.Qd5#
- 1...Kxe5
- 2.Qd5#
- 1...Rbe3
- 2.Qd5#
- 1...Rfe3
- 2.Qd5#
- 1...Bg6
- 2.Qd5#
- 1...Bf7
- 2.Qe4#
- 1...Sc3
- 2.Sxf3#
- 1...Sd6
- 2.Rd5#
- 1...Sc7
- 2.Re4#
- threat
- 1.Qb7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 5
- REMOVED MATES = 4
- Sets
- R(b);N_GUARD::S(B),XR(c)
- R(c);N_GUARD,XP(C)::S(B),XR(b)
- S(g);CHECK,S_CUTR(c)::S(B),XR(b)
- S(g);CHECK,N_PINR(F)::QAB(H)+R(F)
- Tries
- Try
- K(I);N_SPINR(F),P-FLIGHT
- Threat
- DUALS(10)
- Vars
- S(g);CHECK::QAB(H)+R(F)
- Refutation
- S(g);CHECK
- Try
- K(I);N_SPINR(F),P-FLIGHT
- Threat
- DUALS(10)
- Refutation
- S(g);CHECK
- Try
- R(E);CHECK,N_SPINR(F),XB(e)
- Refutation
- Q(f);P_PINR(F),XR(E)
- Try
- Q(H);CHECK,XP(i)
- Vars
- K(d);N_SPINB(e),S_FLIGHT,XR(F)::QAR2(H)
- Refutation
- S(g);CHECK,XQ(H)
- Try
- Q(H);CHECK
- Vars
- K(d);N_SPINB(e),S_FLIGHT,XR(F)::QAR1(H)
- Refutation
- S(g);CHECK,N_PINR(F),P_SPINS(g)
- Try
- Actual
- Q(H);
- Threat
- DUALS(2)
- Vars
- K(d);N_SPINB(e),S_FLIGHT,XR(F)::QAR1(H)
- R(b);::QAR1(H)
- R(c);::QAR1(H)
- B(h);::QAR1(H)
- S(g);P_PINQ(H),S_CUTR(b)::S(B),XR(c)
- S(g);N_PINR(F),P_PINQ(H)::R1(F)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).